CN107741296B - Automatic pressure sensor debugging device with electric proportional valve - Google Patents
Automatic pressure sensor debugging device with electric proportional valve Download PDFInfo
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- CN107741296B CN107741296B CN201711142273.XA CN201711142273A CN107741296B CN 107741296 B CN107741296 B CN 107741296B CN 201711142273 A CN201711142273 A CN 201711142273A CN 107741296 B CN107741296 B CN 107741296B
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- 230000001105 regulatory effect Effects 0.000 claims abstract description 47
- 230000001276 controlling effect Effects 0.000 claims abstract description 4
- 230000000087 stabilizing effect Effects 0.000 claims description 7
- 239000011229 interlayer Substances 0.000 claims description 6
- 238000004891 communication Methods 0.000 claims description 3
- 238000001514 detection method Methods 0.000 abstract description 11
- 238000010586 diagram Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L27/00—Testing or calibrating of apparatus for measuring fluid pressure
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- General Physics & Mathematics (AREA)
- Measuring Fluid Pressure (AREA)
- Control Of Fluid Pressure (AREA)
Abstract
The invention provides an automatic pressure sensor debugging device with an electric proportional valve, which comprises the following components; the pressure regulating device comprises a control system, wherein the control system comprises an industrial personal computer, a voltage module and an electromagnetic valve driving mechanism, the electromagnetic valve driving mechanism is used for respectively controlling the on-off of an electromagnetic valve of the pressure regulating device, the voltage module is connected with the SMC electric proportional regulating valve, the industrial personal computer is used for obtaining a pressure value obtained by a second pressure gauge and automatically regulating the on-off state of the electromagnetic valve according to the set pressure value, the voltage value of the SMC electric proportional regulating valve is regulated through the voltage module, the linear change of the pressure in the high-low temperature test box is realized, the linear regulation of the pressure in the high-low temperature test box can be realized through the on-off of the corresponding electromagnetic valve and the SMC electric proportional regulating valve, any pressure in a permissible pressure range value can be set, and the detection precision detection of the pressure sensor is improved.
Description
Technical Field
The invention relates to an automatic pressure sensor debugging device with an electric proportional valve, and belongs to the technical field of environmental test equipment.
Background
Along with the continuous development of technology, people have higher and higher quality requirements on products, wherein the quality requirements comprise stability, reliability, service life and the like of the products, elements with detection functions such as pressure sensors on the market are required to be fully detected before the products are put into the market, wherein the pressure detection precision of the pressure sensors is one of important influence factors of market competitiveness, the detection precision of the pressure sensors is mostly tested in a high-temperature test box by adjusting the pressure in the box, the pressure detection of the pressure sensors is performed in the existing high-temperature test box by different air sources and corresponding pipelines, the pressure in the pipelines is fixed and unchanged, and a plurality of pipelines are required to be arranged for changing the pressure value, so that the volume of detection equipment is excessively large.
Disclosure of Invention
In order to overcome the technical defects, the invention provides an automatic pressure sensor debugging device with an electric proportional valve.
The invention provides an automatic pressure sensor debugging device with an electric proportional valve, which comprises the following components;
a plurality of interlayer are arranged in the high-low temperature test box, and pressure sensors to be detected are arranged among the interlayer;
the pressure regulating device is connected with the high-low temperature test box and can regulate the pressure value in the high-low temperature test box, the pressure regulating device comprises a first air source and a second air source, the pressure values of the first air source and the second air source are different, the first air source is sequentially communicated with a stop valve and a first-stage pressure reducing valve, the first-stage pressure reducing valve is respectively communicated with a solenoid valve S1 and a second-stage pressure reducing valve, the second-stage pressure reducing valve is respectively communicated with a solenoid valve S2 and an SMC electric proportional regulating valve, the SMC electric proportional regulating valve is respectively communicated with a solenoid valve S3, the solenoid valve S1, the solenoid valve S2 and the solenoid valve S3 are respectively communicated with a solenoid valve S8, a solenoid valve S2 and a flow limiting orifice plate, a plurality of air pipes are led out from the flow limiting orifice plate to be communicated with the high-low temperature test box, the second air source is sequentially communicated with a solenoid valve S7, a vacuum generator and a vacuum tank pressure stabilizing valve are respectively communicated with a solenoid valve S8 and a solenoid valve S6, the solenoid valve S2 and the solenoid valve S6 are respectively communicated with a solenoid valve S2 and a solenoid valve S6, the solenoid valve S2 and the solenoid valve S6 are respectively communicated with a pipeline, the solenoid valve S2 and the solenoid valve S6 are respectively, the solenoid valve S2 and the solenoid valve S3 and the solenoid valve S are respectively connected to a real-pressure control system, a real-time control system is connected to a real-time control system;
the control system is respectively and controllably connected with the pressure regulating device and the high-low temperature test box and comprises an industrial personal computer, a voltage module and an electromagnetic valve driving mechanism, wherein the electromagnetic valve driving mechanism is respectively used for controlling the on-off of an electromagnetic valve of the pressure regulating device, the voltage module is connected with the SMC electric proportional regulating valve, the industrial personal computer is used for acquiring a pressure value acquired by a second pressure gauge and automatically regulating the on-off state of the electromagnetic valve according to the set pressure value, and the voltage value of the SMC electric proportional regulating valve is regulated through the voltage module, so that the pressure linear change in the high-low temperature test box is realized.
And a plurality of temperature transmitters are arranged in the high-low temperature test box.
The high-low temperature test chamber and the pressure regulating device are connected with the control system through RS232 communication.
The control system is also provided with a serial port server, the high-low temperature test box and the pressure regulating device are respectively connected with the serial port of the serial port server, and the serial port server is connected with the industrial personal computer.
The industrial personal computer is connected with the serial port server through the network port switch.
The electromagnetic valve driving mechanism is a relay driving control board, the relay control board is provided with a plurality of relays, and the relays are respectively connected with the corresponding electromagnetic valves in a control manner.
The control system is also provided with an oscilloscope for detecting the use state of the pressure sensor and the equipment.
The air outlet pipelines of the primary pressure reducing valve and the vacuum tank pressure stabilizing valve are respectively provided with a spring safety valve.
Two groups of data lines are arranged in the high-low temperature test box.
The invention has the beneficial effects that: the input of different pressures of the same pipeline is realized through the on-off of the corresponding electromagnetic valve, the pressure change is realized through the voltage value change of the voltage module of the SMC electric proportional regulating valve, the pressure in the high-low temperature test box can be linearly regulated, any pressure in the allowable pressure range value can be set, and the detection precision detection of the pressure sensor is improved.
Drawings
FIG. 1 is a schematic diagram of the high and low temperature test chamber of the present invention.
Fig. 2 is a schematic diagram 1 of the control system of the present invention.
Fig. 3 is a schematic diagram 2 of the control system of the present invention.
Fig. 4 is a schematic diagram 3 of the control system of the present invention.
Fig. 5 is a schematic diagram of the pressure regulating device of the present invention.
Detailed Description
Embodiments of the invention are further described below with reference to the accompanying drawings:
as shown in the figure, the invention provides an automatic pressure sensor debugging device with an electric proportional valve, which comprises the following components;
a plurality of interlayer are arranged in the high-low temperature test box 2, and a pressure sensor 4 to be detected is arranged between the interlayer;
the pressure regulating device 11 is connected with the high-low temperature test box 2, and can regulate the pressure value in the high-low temperature test box, the pressure regulating device comprises a first air source and a second air source, the pressure values of the first air source and the second air source are different, the first air source is sequentially communicated with a stop valve and a primary pressure reducing valve, the primary pressure reducing valve is respectively communicated with a solenoid valve S1 and a secondary pressure reducing valve, the secondary pressure reducing valve is respectively communicated with a solenoid valve S2 and an SMC electric proportional regulating valve, the SMC electric proportional regulating valve is respectively communicated with a solenoid valve S3, the solenoid valve S1, the solenoid valve S2 and the solenoid valve S3 are respectively communicated with a solenoid valve S8, the solenoid valve S2 and a current limiting orifice plate, a plurality of air pipes are led out from the current limiting orifice plate to be communicated with the high-low temperature test box, the second air source is sequentially communicated with a solenoid valve S7, a vacuum generator and a vacuum tank pressure stabilizing valve are respectively communicated with a solenoid valve S8 and a solenoid valve S6, the solenoid valve S2 and the solenoid valve S6 are respectively communicated with a pipeline, the current limiting orifice plate is arranged at the current limiting position, the second pressure meter is connected with a high-low pressure meter and a real-time control system, and the value is connected to the high-low pressure meter and the high-temperature test box.
The air outlet pipe of the pressure stabilizing valve of the vacuum tank can be provided with a first pressure gauge for detecting the output air pressure of the second air source in real time.
And a plurality of air pipes are led out from the flow limiting pore plate and are respectively connected into the low-temperature and high-temperature test box from different height positions, so that the pressure change in the whole low-temperature and high-temperature test box can be ensured to be uniform.
The control system is respectively and controllably connected with the pressure regulating device and the high-low temperature test box and comprises an industrial personal computer, a voltage module and an electromagnetic valve driving mechanism 10, wherein the electromagnetic valve driving mechanism is respectively used for controlling the on-off of an electromagnetic valve of the pressure regulating device, the voltage module is connected with the SMC electric proportional regulating valve, the industrial personal computer is used for acquiring a pressure value acquired by a second pressure gauge and automatically regulating the on-off state of the electromagnetic valve according to the set pressure value, and the voltage value of the SMC electric proportional regulating valve is regulated through the voltage module, so that the pressure linear change in the high-low temperature test box is realized.
The control system is also provided with two sets of switch power supplies, wherein a first switch power supply 8 supplies power to the voltage module 7, the SMC electric proportion regulating valve and all electromagnetic valves, a second switch power supply 9 supplies power to the relay drive control board and the serial port server 5, and a direct current stabilized power supply is adopted to supply power to the pressure sensor to be tested.
The temperature transmitter is connected with the industrial personal computer, so that temperature detection can be directly performed, temperature change in the high-low temperature test box is detected in real time, and the industrial personal computer can directly send a temperature instruction to the high-low temperature test box, so that the temperature inside the high-low temperature test box can be automatically regulated, and test requirements can be met.
The high-low temperature test chamber and the pressure regulating device are connected with the control system through RS232 communication.
The control system is also provided with a serial port server, the high-low temperature test box and the pressure regulating device are respectively connected with the serial port of the serial port server, and the serial port server is connected with the industrial personal computer.
The industrial personal computer 1 is connected with the serial server 5 through the network port switch 6.
The electromagnetic valve driving mechanism is a relay driving control board, the relay control board is provided with a plurality of relays, and the relays are respectively connected with the corresponding electromagnetic valves in a control manner.
The control system is also provided with an oscilloscope for detecting the use state of the pressure sensor and the equipment.
The air outlet pipelines of the primary pressure reducing valve and the vacuum tank pressure stabilizing valve are respectively provided with a spring safety valve, and the spring safety valves are arranged to automatically relieve pressure when the pressure in the pipelines exceeds the specification so as to ensure the safety in the high-low temperature test box and the accuracy of data detection.
Two groups of data lines are arranged in the high-low temperature test box, 8 boards are arranged in the high-low temperature test box, 1, 3, 5 and 7 are in one group, 2, 4, 6 and 8 are in one group, and 2 groups of data lines are communicated respectively, so that the debugging progress can be accelerated.
The operation steps are as follows:
(1) preparing, wherein all valves keep in a normal state;
(2) the pressure adjustment step is as follows
When P is less than 0.1MPa, the electromagnetic valve S6 and the electromagnetic valve S2 are closed;
solenoid valve S8 is opened and solenoid valve S7 is opened.
When P is more than or equal to 0.1MPa and less than or equal to 1.0MPa,
regulating SMC air pressure; closing the electromagnetic valve S2 and then opening the electromagnetic valve S5;
when the P is more than 1.0MPa and less than or equal to 1.6MPa,
closing the electromagnetic valve S2, and then opening the electromagnetic valve S3 or the electromagnetic valve S1;
(3) and after that, the normal state is restored.
Based on the technology, the pressure sensor can automatically adjust different temperatures and different pressures to set the pressure in the high-low temperature test chamber, thereby achieving the effect of adjusting the pressure sensor.
The examples should not be construed as limiting the invention, and any modifications based on the spirit of the invention should be within the scope of the invention.
Claims (9)
1. The utility model provides an electrified proportional valve's automatic debugging device of pressure sensor which characterized in that: it comprises;
a plurality of interlayer are arranged in the high-low temperature test box, and pressure sensors to be detected are arranged among the interlayer;
the pressure regulating device is connected with the high-low temperature test box and can regulate the pressure value in the high-low temperature test box, the pressure regulating device comprises a first air source and a second air source, the pressure values of the first air source and the second air source are different, the first air source is sequentially communicated with a stop valve and a first-stage pressure reducing valve, the first-stage pressure reducing valve is respectively communicated with a solenoid valve S1 and a second-stage pressure reducing valve, the second-stage pressure reducing valve is respectively communicated with a solenoid valve S2 and an SMC electric proportional regulating valve, the SMC electric proportional regulating valve is respectively communicated with a solenoid valve S3, the solenoid valve S1, the solenoid valve S2 and the solenoid valve S3 are respectively communicated with a solenoid valve S8, a solenoid valve S2 and a flow limiting orifice plate, a plurality of air pipes are led out from the flow limiting orifice plate to be communicated with the high-low temperature test box, the second air source is sequentially communicated with a solenoid valve S7, a vacuum generator and a vacuum tank pressure stabilizing valve are respectively communicated with the solenoid valve S8 and the solenoid valve S6, the solenoid valve S2 and the solenoid valve S6 are respectively communicated with a pipeline, a second pressure meter is arranged at the flow limiting position, and the second pressure meter is connected with a pressure meter control system in real time;
the control system is respectively and controllably connected with the pressure regulating device and the high-low temperature test box and comprises an industrial personal computer, a voltage module and an electromagnetic valve driving mechanism, wherein the electromagnetic valve driving mechanism is respectively used for controlling the on-off of an electromagnetic valve of the pressure regulating device, the voltage module is connected with the SMC electric proportional regulating valve, the industrial personal computer is used for acquiring a pressure value acquired by a second pressure gauge and automatically regulating the on-off state of the electromagnetic valve according to the set pressure value, and the voltage value of the SMC electric proportional regulating valve is regulated through the voltage module, so that the pressure linear change in the high-low temperature test box is realized.
2. The automatic pressure sensor debugging device with the electric proportional valve according to claim 1, wherein a plurality of temperature transmitters are arranged in the high-low temperature test box.
3. The automatic pressure sensor debugging device with the electric proportional valve according to claim 1 or 2, wherein the high-low temperature test chamber and the pressure adjusting device are connected with the control system through RS232 communication.
4. The automatic pressure sensor debugging device with the electric proportional valve according to claim 3, wherein the control system is further provided with a serial port server, the high-low temperature test box and the pressure adjusting device are respectively connected with serial ports of the serial port server, and the serial port server is connected with the industrial personal computer.
5. The automatic pressure sensor debugging device with the electric proportional valve according to claim 4, wherein the industrial personal computer is connected with the serial port server through a network port switch.
6. The automatic pressure sensor debugging device with the electric proportional valve according to claim 1, wherein the electromagnetic valve driving mechanism is a relay driving control board, the relay control board is provided with a plurality of relays, and the relays are respectively connected with corresponding electromagnetic valve control.
7. The automatic pressure sensor debugging device with the electric proportional valve according to claim 1, wherein the control system is further provided with an oscilloscope for detecting the use state of the pressure sensor and the equipment.
8. The automatic pressure sensor debugging device with the electric proportional valve according to claim 1, wherein the air outlet pipelines of the primary pressure reducing valve and the vacuum tank pressure stabilizing valve are respectively provided with a spring safety valve.
9. The automatic pressure sensor debugging device with the electric proportional valve according to claim 1, wherein two groups of data wires are arranged in the high-low temperature test box.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711142273.XA CN107741296B (en) | 2017-11-17 | 2017-11-17 | Automatic pressure sensor debugging device with electric proportional valve |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711142273.XA CN107741296B (en) | 2017-11-17 | 2017-11-17 | Automatic pressure sensor debugging device with electric proportional valve |
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| CN107741296B true CN107741296B (en) | 2024-01-19 |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114812929A (en) * | 2022-04-25 | 2022-07-29 | 德丰电创科技股份有限公司 | Life test device and system |
| CN114910214B (en) * | 2022-05-10 | 2023-10-27 | 中国航空工业集团公司哈尔滨空气动力研究所 | Ground testing device for pulse pressure sensor |
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